. Which

of the following sentences are true?

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function msoCommentShow(anchor_id, com_id)

{

if(msoBrowserCheck())

{

c = document.all(com_id);

a = document.all(anchor_id);

if (null != c && null == c.length && null != a && null == a.length)

{

var cw = c.offsetWidth;

var ch = c.offsetHeight;

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var ah = a.offsetHeight;

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x = x + el.offsetLeft;

y = y + el.offsetTop;

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var bh = document.body.clientHeight;

var bsl = document.body.scrollLeft;

var bst = document.body.scrollTop;

if (x + cw + ah / 2 > bw + bsl && x + aw - ah / 2 - cw >= bsl )

{ c.style.left = x + aw - ah / 2 - cw; }

else

{ c.style.left = x + ah / 2; }

if (y + ch + ah / 2 > bh + bst && y + ah / 2 - ch >= bst )

{ c.style.top = y + ah / 2 - ch; }

else

{ c.style.top = y + ah / 2; }

c.style.visibility = "visible";

} } }

function msoCommentHide(com_id)

{

if(msoBrowserCheck())

{

c = document.all(com_id);

if (null != c && null == c.length)

{

c.style.visibility = "hidden";

c.style.left = -1000;

c.style.top = -1000;

} }

}

function msoBrowserCheck()

{

ms = navigator.appVersion.indexOf("MSIE");

vers = navigator.appVersion.substring(ms + 5, ms + 6);

ie4 = (ms > 0) && (parseInt(vers) >= 4);

return ie4;

}

if (msoBrowserCheck())

{

document.styleSheets.dynCom.addRule(".msocomanchor","background: infobackground");

document.styleSheets.dynCom.addRule(".msocomoff","display: none");

document.styleSheets.dynCom.addRule(".msocomtxt","visibility: hidden");

document.styleSheets.dynCom.addRule(".msocomtxt","position: absolute");

document.styleSheets.dynCom.addRule(".msocomtxt","top: -1000");

document.styleSheets.dynCom.addRule(".msocomtxt","left: -1000");

document.styleSheets.dynCom.addRule(".msocomtxt","width: 33%");

document.styleSheets.dynCom.addRule(".msocomtxt","background: infobackground");

document.styleSheets.dynCom.addRule(".msocomtxt","color: infotext");

document.styleSheets.dynCom.addRule(".msocomtxt","border-top: 1pt solid threedlightshadow");

document.styleSheets.dynCom.addRule(".msocomtxt","border-right: 2pt solid threedshadow");

document.styleSheets.dynCom.addRule(".msocomtxt","border-bottom: 2pt solid threedshadow");

document.styleSheets.dynCom.addRule(".msocomtxt","border-left: 1pt solid threedlightshadow");

document.styleSheets.dynCom.addRule(".msocomtxt","padding: 3pt 3pt 3pt 3pt");

document.styleSheets.dynCom.addRule(".msocomtxt","z-index: 100");

}

// -->

Security

threats can be categorized using the

mnemonics. What of the following sentences are

true?